In the fictional universe where 'aether-sonis' permeates space, allowing the transmission of vibrations, the experience of an exploding spaceship near another would be as follows:

1. **Visual Experience**: The crew would witness the explosion through the light emitted, which travels at the speed of light (approximately 300,000 km/s). This is virtually instantaneous, so the crew would see the flash of the explosion almost immediately, followed by the expanding fireball and any debris visible through their visual sensors.

2. **Auditory Experience**: The explosion generates vibrations that travel through 'aether-sonis,' a medium that supports sound transmission. This means the crew would hear the explosion after a delay, dependent on the distance between the ships and the speed of wave propagation in 'aether-sonis.' Assuming a speed similar to that of sound in air, the delay would be noticeable, particularly if the ships are several kilometers apart.

3. **Sensory Perception**: The crew would feel the physical effects of the explosion's vibrations through their ship, experiencing shaking or impacts as the sound waves (vibrations) reach them. This tactile sensation would also be delayed compared to the visual, reflecting the time it takes for these vibrations to travel through 'aether-sonis.'

4. **Simultaneity**: The crew would not experience seeing and hearing the explosion simultaneously. Light and sound travel at different speeds, with light being significantly faster. Thus, they would see the explosion first and hear it later.

In conclusion, the crew would perceive the explosion's light almost instantly, followed by the sound and physical vibrations after a perceptible delay, due to the differing speeds of light and 'aether-sonis' vibrations.